#VU66472 Out-of-bounds read in FreeBSD - CVE-2022-23089

Vulnerability identifier: #VU66472

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-23089

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FreeBSD
Operating systems & Components / Operating system

Vendor: FreeBSD Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the elf_note_prpsinfo() function in prpsinfo. A local user can trigger an out-of-bounds read error and crash the OS kernel.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FreeBSD: 12.0 - 13.1

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External links
https://www.freebsd.org/security/advisories/FreeBSD-SA-22:09.elf.asc

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.